Tag Archives: 17sean

About The Lungs

INTRODUCTION


Have you ever wondered about how you breathe? Read on and find out. The lung is like a football-sized pump that weighs around a pound.The lungs are Located within the chest cavity on either side of the heart.Each lung reaches from the collarbone to the border between the chest and abdominal cavities.The lungs in your body keep increasing and decreasing in size every second until you die.They breathe in this air,which is mostly nitrogen and oxygen some argon and carbon dioxide,just to keep you alive.In this text you will find out more about:

  • The inside- what it’s made from?
  • How does it work? 
  • How it corresponds to other organs?

What’s Inside the lungs?


Inside the lungs, are tubular branches, called bronchi-which air passes through.If you kept dividing the bronchi you’ll see even smaller branches (bronchioles), finally becoming microscopic.The bronchioles eventually end in clusters of microscopic air sacs called alveoli. In the alveoli, oxygen from the air is absorbed into the blood. Just outside the pair of spongy, air-filled organs,(also known as the lungs) is the trachea -or windpipe-this is a tube that is attached to the pair of lungs.The diaphragm,which is just below the lungs,is a dome-shaped, muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing, as its contraction increases the volume of the thorax and so inflates the lungs.

How do the lungs work?


As the bronchial tubes pass through the lungs, they divide into smaller air passages called bronchioles. The bronchioles end in tiny balloon-like air sacs called alveoli. Your body has over 300 million alveoli.The alveoli are surrounded by a mesh of tiny blood vessels called capillaries. Here, oxygen from the inhaled air passes through the alveoli walls and into the blood.After absorbing oxygen, the blood leaves the lungs and is carried to your heart. Your heart then pumps it through your body to provide oxygen to the cells of your tissues and organs.As the cells use the oxygen, carbon dioxide is produced and absorbed into the blood. Your blood then carries the carbon dioxide back to your lungs, where it is removed from the body when you exhale.

Circulatory system 

The circulatory system consists of  2 organs ,that consist of multiple tissue, that consist of many cells, – the heart (cardiovascular) and lungs (pulmonary) – plus many arteries, veins, coronary and portal vessels (systemic).In the average human, about 2,000 gallons (7,572 liters) of blood travel daily through about 60,000 miles (96,560 kilometers) of blood vessels, according to the Arkansas Heart Hospital. An average adult has 5 to 6 quarts (4.7 to 5.6 liters) of blood, which is made up of plasma, red blood cells, white blood cells, and platelets, which are also called thrombocytes.

Fun Facts:

  • The primary functions of your lungs are to transport oxygen from the air you breathe into your bloodstream while taking away carbon dioxide, which is released into the air when you breathe out.
  • Most vertebrate animals (animals with spines) have two lungs.
  • Your left and right lungs aren’t exactly the same. The lung on the left side of your body is divided into two lobes while the lung on your right side is divided into three. The left lung is also slightly smaller, allowing room for your heart.
  • Can you live without one lung? Yes you can, it limits your physical ability but doesn’t stop you from living a relatively normal life. Many people around the world live with just one lung.
  • People who have a large lung capacity can send oxygen around their body faster. You can increase you lung capacity with regular exercise.
  • When resting, the average adult breathes around 12 to 20 times a minute.
  • An average person breathes in around 11,000 litres of air every day.
  • The study of lung diseases is known as pulmonology.
  • As well as other parts of your body and your general health, smoking is bad for your lungs. Smoking can cause lung cancer among other lung affecting diseases.
  • Asthma is a common disease that affects the lungs. Asthma attacks happen when your airways narrow after being irritated. The narrow airways make it hard for you to breathe in air.
  • Pneumonia is a dangerous disease that makes it harder for your lungs to absorb oxygen from the air you breathe.
  • Other lung diseases include emphysema, tuberculosis and bronchitis.